Add test

Author: ada4a

crates/ide-completion/src/render.rs

@@ -3647,6 +3647,25 @@ fn f() {
         );
     }
 
+    #[test]
+    /// Issue: https://github.com/rust-lang/rust-analyzer/issues/18554
+    fn float_consts_relevance() {
+        check_relevance(
+            r#"
+//- minicore: float_consts
+fn main() {
+    let x = f32::INF$0
+}
+"#,
+            expect![[r#"
+                ct INFINITY f32 [type_could_unify+requires_import]
+                ct NEG_INFINITY f32 [type_could_unify+requires_import]
+                ct INFINITY pub const INFINITY: f32 []
+                ct NEG_INFINITY pub const NEG_INFINITY: f32 []
+            "#]],
+        );
+    }
+
     #[test]
     fn completes_struct_with_raw_identifier() {
         check_edit(

crates/test-utils/src/minicore.rs

@@ -33,6 +33,7 @@
 //!     env: option
 //!     eq: sized
 //!     error: fmt
+//!     float_consts:
 //!     fmt: option, result, transmute, coerce_unsized, copy, clone, derive
 //!     fmt_before_1_93_0: fmt
 //!     fmt_before_1_89_0: fmt_before_1_93_0
@@ -2173,6 +2174,32 @@ pub mod error {
 }
 // endregion:error
 
+// region:float_consts
+impl f32 {
+    pub const INFINITY: f32 = 0.0;
+    pub const NEG_INFINITY: f32 = -0.0;
+}
+
+impl f64 {
+    pub const INFINITY: f64 = 0.0;
+    pub const NEG_INFINITY: f64 = -0.0;
+}
+
+pub mod f32 {
+    #[deprecated]
+    pub const INFINITY: f32 = 0.0;
+    #[deprecated]
+    pub const NEG_INFINITY: f32 = -0.0;
+}
+
+pub mod f64 {
+    #[deprecated]
+    pub const INFINITY: f64 = 0.0;
+    #[deprecated]
+    pub const NEG_INFINITY: f64 = -0.0;
+}
+// endregion:float_consts
+
 // region:column
 #[rustc_builtin_macro]
 #[macro_export]